/* Modern Payment System Template - CSS Styles */

/* === CSS Variables === */
:root {
  /* Colors */
  --primary-color: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #8b5cf6;
  --secondary-color: #f59e0b;
  --accent-color: #10b981;
  --success-color: #059669;
  --warning-color: #f59e0b;
  --error-color: #ef4444;
  --info-color: #3b82f6;
  
  /* Neutrals */
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  
  /* Typography */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif, "Microsoft YaHei";
  --font-family-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif, "Microsoft YaHei";
  --font-family-mono: 'JetBrains Mono', 'Fira Code', Consolas, 'Liberation Mono', monospace;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
  
  /* Z-Index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* === Reset & Base Styles === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family-base);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-700);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
  margin-bottom: var(--space-4);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
  margin-bottom: var(--space-4);
  color: var(--gray-600);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
}

strong {
  font-weight: 600;
  color: var(--gray-800);
}

/* === Utility Classes === */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

@media (min-width: 640px) {
  .container { padding: 0 var(--space-6); }
}

@media (min-width: 1024px) {
  .container { padding: 0 var(--space-8); }
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }

/* === Loading Screen === */
#loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease-in-out;
}

#loading-screen.fade-out {
  opacity: 0;
}

.loading-spinner {
  position: relative;
  width: 80px;
  height: 80px;
}

.spinner-ring {
  position: absolute;
  border: 3px solid transparent;
  border-top: 3px solid var(--white);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.spinner-ring:nth-child(1) {
  width: 80px;
  height: 80px;
  animation-delay: 0s;
}

.spinner-ring:nth-child(2) {
  width: 60px;
  height: 60px;
  top: 10px;
  left: 10px;
  animation-delay: 0.1s;
}

.spinner-ring:nth-child(3) {
  width: 40px;
  height: 40px;
  top: 20px;
  left: 20px;
  animation-delay: 0.2s;
}

.loading-text {
  color: var(--white);
  font-size: 1.125rem;
  margin-top: var(--space-6);
  opacity: 0.9;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* === Header & Navigation === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  z-index: var(--z-fixed);
  transition: var(--transition-normal);
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-md);
}

.navbar {
  padding: var(--space-4) 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand .logo img {
  height: 40px;
  width: auto;
}

.navbar-nav {
  display: flex;
  list-style: none;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-lg);
  color: var(--gray-600);
  font-weight: 500;
  transition: var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary-color);
  background-color: var(--gray-50);
}

.nav-link i {
  font-size: 0.875rem;
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary-color);
  color: var(--white);
  border-color: var(--primary-color);
}

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: var(--white);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  color: var(--gray-600);
  border-color: var(--gray-300);
}

.btn-outline:hover {
  background: var(--gray-50);
  color: var(--gray-800);
  border-color: var(--gray-400);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: 1rem;
}

.btn-xl {
  padding: var(--space-5) var(--space-10);
  font-size: 1.125rem;
}

/* === Mobile Navigation === */
.mobile-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: calc(var(--z-fixed) + 1);
}

.mobile-nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--gray-700);
  transition: var(--transition-fast);
  margin: 2px 0;
}

.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-normal);
  z-index: calc(var(--z-fixed) - 1);
}

@media (max-width: 1023px) {
  .mobile-nav-toggle {
    display: flex;
  }
  
  .navbar-nav {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    justify-content: flex-start;
    align-items: stretch;
    padding: var(--space-20) var(--space-6) var(--space-6);
    gap: var(--space-4);
    box-shadow: var(--shadow-2xl);
    transition: var(--transition-normal);
    z-index: var(--z-fixed);
  }
  
  .navbar-nav.active {
    right: 0;
  }
  
  .nav-overlay.active {
    opacity: 1;
    visibility: visible;
  }
  
  .nav-link {
    padding: var(--space-4);
    justify-content: flex-start;
    border-radius: var(--radius-xl);
  }
  
  .navbar-actions {
    flex-direction: column;
    gap: var(--space-4);
    margin-top: var(--space-6);
  }
  
  .mobile-nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .mobile-nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
  }
}

/* === Hero Section === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 80px;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-gradient {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, 
    rgba(99, 102, 241, 0.05) 0%, 
    rgba(139, 92, 246, 0.05) 50%, 
    rgba(16, 185, 129, 0.05) 100%);
}

.hero-particles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    radial-gradient(circle at 25% 25%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 75% 75%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  width: 100%;
}

.hero-text {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary-color);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--space-6);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-6);
}

.hero-title .highlight {
  color: var(--primary-color);
}

.hero-title .gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--gray-600);
  margin-bottom: var(--space-8);
}

.hero-description strong {
  color: var(--primary-color);
  font-weight: 600;
}

.hero-features {
  display: flex;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--gray-600);
}

.feature-item i {
  color: var(--accent-color);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

/* === Phone Mockup === */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-mockup {
  position: relative;
  animation: phoneFloat 3s ease-in-out infinite;
}

@keyframes phoneFloat {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

.phone-frame {
  width: 280px;
  height: 550px;
  background: linear-gradient(135deg, var(--gray-800), var(--gray-900));
  border-radius: 30px;
  padding: 20px;
  box-shadow: var(--shadow-2xl);
  position: relative;
}

.phone-frame::before {
  content: '';
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--gray-600);
  border-radius: 2px;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: var(--white);
  border-radius: 20px;
  overflow: hidden;
}

.screen-content {
  padding: var(--space-6);
}

.app-header {
  text-align: center;
  margin-bottom: var(--space-6);
}

.status-bar {
  height: 20px;
  background: var(--gray-100);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
}

.payment-demo {
  text-align: center;
}

.payment-methods {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

/* Payment method styles moved to enhanced section below */

.qr-code-demo {
  padding: var(--space-6);
}

.qr-placeholder {
  width: 120px;
  height: 120px;
  background: var(--gray-100);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.qr-placeholder i {
  font-size: 3rem;
  color: var(--gray-400);
}

/* === Enhanced QR Code Styles === */
.qr-placeholder.updating {
  transform: scale(0.95);
  opacity: 0.7;
}

.qr-placeholder.updated {
  transform: scale(1.05);
  animation: qrPulse 0.6s ease-out;
}

@keyframes qrPulse {
  0% { transform: scale(1.05); }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); }
}

.qr-code-display {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.qr-grid {
  display: grid;
  grid-template-columns: repeat(15, 1fr);
  grid-template-rows: repeat(15, 1fr);
  gap: 1px;
  width: 80px;
  height: 80px;
  padding: 4px;
  background: var(--white);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-2);
}

.qr-dot {
  background: var(--gray-100);
  border-radius: 1px;
  transition: all 0.1s ease-in-out;
}

.qr-dot.filled {
  background: var(--gray-900);
}

.qr-logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 20px;
  height: 20px;
  background: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 2px var(--white);
  margin-top: -10px;
}

.qr-logo i {
  font-size: 0.75rem;
}

.payment-amount {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
  margin: var(--space-3) 0 var(--space-2);
}

.payment-tip {
  font-size: 0.75rem;
  color: var(--gray-500);
  margin-bottom: var(--space-2);
}

/* === Enhanced Payment Method Styles === */
.payment-method {
  padding: var(--space-3);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.payment-method::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  );
  transition: left 0.6s ease-out;
}

.payment-method.active {
  border-color: var(--primary-color);
  background: rgba(99, 102, 241, 0.05);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.payment-method.clicked::before {
  left: 100%;
}

.payment-method:hover {
  transform: translateY(-1px);
  border-color: var(--primary-light);
  box-shadow: var(--shadow-sm);
}

.payment-method i {
  font-size: 1.5rem;
  margin-bottom: var(--space-1);
  display: block;
  transition: all var(--transition-fast);
}

.payment-method.active i {
  transform: scale(1.1);
}

.payment-method span {
  font-size: 0.75rem;
  display: block;
  font-weight: 500;
}

/* === Screen Content with Dynamic Theme === */
.screen-content {
  padding: var(--space-6);
  --payment-color: var(--primary-color);
}

.screen-content .app-header h3 {
  color: var(--payment-color);
  transition: color var(--transition-normal);
}

.payment-methods .payment-method.active {
  border-color: var(--payment-color);
  background: color-mix(in srgb, var(--payment-color) 10%, transparent);
}

.payment-methods .payment-method.active i {
  color: var(--payment-color);
}

/* === Animation Classes === */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.animate-in {
  animation: slideInUp 0.6s ease-out;
}

.fade-in {
  animation: fadeIn 0.4s ease-out;
}

.scale-in {
  animation: scaleIn 0.3s ease-out;
}

/* === Scroll Indicator === */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--gray-500);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

.scroll-arrow {
  width: 40px;
  height: 40px;
  border: 2px solid var(--gray-300);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-indicator span {
  font-size: 0.875rem;
}

/* === Sections === */
.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--gray-900);
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
}

/* === Services Section === */
.services {
  padding: var(--space-24) 0;
  background: var(--gray-50);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-8);
}

.service-card {
  background: var(--white);
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
  text-align: center;
  transition: var(--transition-normal);
  border: 1px solid var(--gray-200);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

.service-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  color: var(--white);
  font-size: 2rem;
}

.service-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--gray-900);
}

.service-description {
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: var(--space-6);
}

.service-features {
  display: flex;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.feature-tag {
  padding: var(--space-1) var(--space-3);
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary-color);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
}

.service-image img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

/* === Advantages Section === */
.advantages {
  padding: var(--space-24) 0;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
}

.advantage-item {
  position: relative;
  background: var(--white);
  padding: var(--space-8);
  border-radius: var(--radius-2xl);
  border: 2px solid var(--gray-200);
  transition: var(--transition-normal);
  text-align: center;
}

.advantage-item:hover {
  border-color: var(--primary-color);
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.advantage-icon {
  margin-bottom: var(--space-6);
}

.advantage-icon img {
  width: 80px;
  height: 80px;
  object-fit: contain;
}

.advantage-content h4 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-4);
  color: var(--gray-900);
}

.advantage-content p {
  color: var(--gray-600);
  line-height: 1.6;
}

.advantage-number {
  position: absolute;
  top: -15px;
  right: 20px;
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.125rem;
}

/* === Statistics Section === */
.statistics {
  padding: var(--space-20) 0;
  background: var(--gradient-primary);
  position: relative;
  overflow: hidden;
}

.statistics-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.stats-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: 
    radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.1) 1px, transparent 1px),
    radial-gradient(circle at 75% 75%, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  background-position: 0 0, 30px 30px;
}

.stats-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
  text-align: center;
  position: relative;
  z-index: 1;
}

.stat-item {
  padding: var(--space-8);
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-xl);
  transition: var(--transition-normal);
}

.stat-item:hover {
  transform: translateY(-8px);
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.stat-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto var(--space-4);
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.5rem;
  transition: var(--transition-normal);
}

.stat-item:hover .stat-icon {
  transform: scale(1.1);
  background: rgba(255, 255, 255, 0.3);
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--white);
  margin: var(--space-4) 0;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.stat-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.stat-label span {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* === Page Header Styles === */
.page-header {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  padding: var(--space-20) 0 var(--space-16);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  pointer-events: none;
}

.page-header-content {
  position: relative;
  z-index: 2;
}

.page-title {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.page-subtitle {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: var(--space-6);
}

.breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: white;
}

.breadcrumb .separator {
  color: rgba(255, 255, 255, 0.6);
}

.breadcrumb .current {
  color: white;
  font-weight: 500;
}

/* === Company Introduction Styles === */
.company-intro {
  padding: var(--space-20) 0;
  background: white;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12);
  align-items: center;
}

.intro-content h2 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-6);
}

.intro-text {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--gray-700);
  margin-bottom: var(--space-6);
}

.intro-features {
  display: flex;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 500;
  color: var(--gray-700);
}

.feature-item i {
  color: var(--primary-color);
  font-size: 1.25rem;
}

.intro-image {
  text-align: center;
}

.intro-image img {
  max-width: 100%;
  height: auto;
}

/* === Company Values Styles === */
.company-values {
  padding: var(--space-20) 0;
  background: var(--gray-50);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
}

.value-card {
  background: white;
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  text-align: center;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.value-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.value-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
}

.value-icon i {
  font-size: 2rem;
  color: white;
}

.value-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--space-4);
}

.value-description {
  color: var(--gray-600);
  line-height: 1.6;
}

/* === Team Section Styles === */
.team-section {
  padding: var(--space-20) 0;
  background: white;
}

.team-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
  text-align: center;
}

.team-stats .stat-item {
  padding: var(--space-6);
}

.team-stats .stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--space-2);
}

.team-stats .stat-label {
  font-size: 1.125rem;
  color: var(--gray-600);
  font-weight: 500;
}

/* === Contact Section Styles === */
.contact-section {
  padding: var(--space-20) 0;
  background: var(--gray-50);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-6);
}

.contact-card {
  background: white;
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  text-align: center;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.contact-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.contact-icon {
  width: 60px;
  height: 60px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
}

.contact-icon i {
  font-size: 1.5rem;
  color: white;
}

.contact-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--space-3);
}

.contact-info {
  color: var(--gray-600);
  line-height: 1.6;
}

/* === CTA Section Styles === */
.cta-section {
  padding: var(--space-20) 0;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  text-align: center;
}

.cta-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
}

.cta-description {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: var(--space-8);
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* === Responsive Design === */
@media (max-width: 1023px) {
  .intro-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    text-align: center;
  }
  
  .intro-features {
    justify-content: center;
  }
  
  .page-title {
    font-size: 2.5rem;
  }
  
  .cta-title {
    font-size: 2rem;
  }
}

@media (max-width: 767px) {
  .page-title {
    font-size: 2rem;
  }
  
  .cta-title {
    font-size: 1.75rem;
  }
  
  .intro-features {
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .team-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 479px) {
  .team-stats {
    grid-template-columns: 1fr;
  }
  
  .values-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
  }
}
.cta {
  padding: var(--space-24) 0;
  background: var(--gray-50);
  position: relative;
  overflow: hidden;
}

.cta-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.cta-pattern {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  opacity: 0.6;
}

.cta-content {
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-text {
  margin-bottom: var(--space-12);
}

.cta-text h2 {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--space-4);
  color: var(--gray-900);
}

.cta-text p {
  font-size: 1.25rem;
  color: var(--gray-600);
}

.cta-actions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.cta-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-xl);
  text-decoration: none;
  transition: var(--transition-normal);
  text-align: left;
}

.cta-card:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.cta-icon {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-color);
  font-size: 1.5rem;
}

.cta-details h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--gray-900);
}

.cta-details p {
  color: var(--gray-600);
  margin: 0;
  font-size: 0.875rem;
}

.cta-arrow {
  margin-left: auto;
  color: var(--gray-400);
  transition: var(--transition-fast);
}

.cta-card:hover .cta-arrow {
  color: var(--primary-color);
  transform: translateX(4px);
}

/* === Footer === */
.footer {
  background: var(--gray-900);
  color: var(--white);
  padding: var(--space-20) 0 var(--space-8);
  position: relative;
}

.footer-top {
  margin-bottom: var(--space-12);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-8);
}

.footer-section h4 {
  color: var(--white);
  font-size: 1.125rem;
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-title i {
  color: var(--primary-color);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-3);
}

.footer-links a {
  color: var(--gray-400);
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: var(--white);
}

.contact-info {
  margin-bottom: var(--space-6);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.contact-item i {
  color: var(--primary-color);
  width: 20px;
  margin-top: var(--space-1);
}

.contact-label {
  font-size: 0.875rem;
  color: var(--gray-400);
  display: block;
  margin-bottom: var(--space-1);
}

.contact-link {
  color: var(--white);
  font-weight: 500;
}

.contact-text {
  color: var(--gray-300);
  line-height: 1.5;
}

.wechat-section {
  text-align: center;
}

.qr-container {
  position: relative;
  display: inline-block;
  margin-bottom: var(--space-4);
}

.qr-code {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-lg);
}

.qr-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-normal);
  color: var(--white);
}

.qr-container:hover .qr-overlay {
  opacity: 1;
}

.qr-overlay i {
  font-size: 2rem;
  margin-bottom: var(--space-2);
}

.qr-description {
  color: var(--gray-400);
  font-size: 0.875rem;
  margin: 0;
}

.footer-bottom {
  border-top: 1px solid var(--gray-700);
  padding-top: var(--space-8);
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.copyright p {
  color: var(--gray-400);
  font-size: 0.875rem;
  margin: 0;
}

.social-links {
  display: flex;
  gap: var(--space-4);
}

.social-link {
  width: 40px;
  height: 40px;
  background: var(--gray-800);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-400);
  transition: var(--transition-fast);
}

.social-link:hover {
  background: var(--primary-color);
  color: var(--white);
  transform: translateY(-2px);
}

/* === Back to Top === */
.back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 50px;
  height: 50px;
  background: var(--primary-color);
  color: var(--white);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: var(--transition-normal);
  opacity: 0;
  visibility: hidden;
  z-index: var(--z-sticky);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

/* === Responsive Design === */
@media (max-width: 1200px) {
  .hero-title { font-size: 3rem; }
  .section-title { font-size: 2.25rem; }
  .container { padding: 0 var(--space-6); }
}

@media (max-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
    gap: var(--space-12);
  }
  
  .hero-actions {
    justify-content: center;
    flex-wrap: wrap;
  }
  
  .phone-frame {
    width: 240px;
    height: 480px;
  }
  
  .services-grid,
  .advantages-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero {
    padding-top: 120px;
    min-height: auto;
    padding-bottom: var(--space-16);
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-description {
    font-size: 1.125rem;
  }
  
  .hero-features {
    flex-direction: column;
    gap: var(--space-3);
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .services,
  .advantages,
  .cta {
    padding: var(--space-16) 0;
  }
  
  .services-grid,
  .advantages-grid {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-actions {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
  
  .footer-bottom-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-badge {
    font-size: 0.75rem;
  }
  
  .btn {
    padding: var(--space-3) var(--space-5);
    font-size: 0.875rem;
  }
  
  .btn-lg {
    padding: var(--space-4) var(--space-6);
  }
  
  .phone-frame {
    width: 200px;
    height: 400px;
  }
  
  .service-card,
  .advantage-item {
    padding: var(--space-6);
  }
  
  .stat-number {
    font-size: 2.5rem;
  }
}

/* === Animation Classes (for AOS) === */
[data-aos] {
  opacity: 0;
  transition: var(--transition-slow);
}

[data-aos].aos-animate {
  opacity: 1;
}

[data-aos="fade-up"] {
  transform: translateY(30px);
}

[data-aos="fade-up"].aos-animate {
  transform: translateY(0);
}

[data-aos="zoom-in"] {
  transform: scale(0.8);
}

[data-aos="zoom-in"].aos-animate {
  transform: scale(1);
}

/* === Partners Section === */
.partners {
  padding: var(--space-20) 0;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  position: relative;
  overflow: hidden;
}

.partners .section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.partners .section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--space-4);
  position: relative;
}

.partners .section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
  border-radius: 2px;
}

.partners .section-subtitle {
  font-size: 1.125rem;
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* === Payment Demo Styles === */
.payment-demo {
  padding: var(--space-4);
}

.payment-methods {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  justify-content: center;
}

.payment-method {
  flex: 1;
  padding: var(--space-2) var(--space-1);
  border-radius: var(--radius-md);
  background: rgba(243, 244, 246, 0.8);
  border: 1px solid rgba(209, 213, 219, 0.5);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  font-size: 0.7rem;
  min-height: 45px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
}

.payment-method:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.payment-method.active {
  background: var(--primary-color);
  color: white;
  border-color: var(--primary-color);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.payment-method.clicked {
  transform: scale(0.95);
}

.payment-method i {
  font-size: 1rem;
  margin-bottom: 2px;
}

.payment-method span {
  font-size: 0.65rem;
  font-weight: 500;
  line-height: 1;
}

/* QR Code Display */
.qr-code-demo {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
  min-height: 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.qr-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  transition: all var(--transition-normal);
}

.qr-placeholder.updating {
  opacity: 0.6;
  transform: scale(0.9);
}

.qr-placeholder.updated {
  animation: qrUpdate 0.3s ease-out;
}

@keyframes qrUpdate {
  0% {
    opacity: 0;
    transform: scale(0.8);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    opacity: 1;
    transform: scale(1);
  }
}

.qr-code-display {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.qr-grid {
  display: grid;
  grid-template-columns: repeat(15, 1fr);
  gap: 1px;
  background: #000;
  padding: 8px;
  border-radius: var(--radius-md);
  width: 80px;
  height: 80px;
  box-sizing: border-box;
}

.qr-dot {
  background: #fff;
  aspect-ratio: 1;
  border-radius: 1px;
  transition: all 0.1s ease;
}

.qr-dot.filled {
  background: #000;
}

.qr-logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: white;
  border-radius: 50%;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.qr-logo i {
  font-size: 10px;
}

.payment-amount {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gray-800);
  margin-top: var(--space-2);
}

.payment-tip {
  font-size: 0.7rem;
  color: var(--gray-600);
  margin-top: var(--space-1);
}

/* Phone Mockup Enhancements */
.phone-mockup {
  position: relative;
  width: 280px;
  height: 550px;
  margin: 0 auto;
  transform-style: preserve-3d;
  transition: transform var(--transition-slow);
}

.phone-frame {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
  border-radius: 30px;
  padding: 20px;
  box-shadow: 
    0 25px 50px -12px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(255, 255, 255, 0.1);
  position: relative;
}

.phone-frame::before {
  content: '';
  position: absolute;
  top: 15px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: rgba(255, 255, 255, 0.3);
  border-radius: 2px;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
  border-radius: 20px;
  overflow: hidden;
  position: relative;
}

.screen-content {
  padding: var(--space-4);
  height: 100%;
  display: flex;
  flex-direction: column;
  --payment-color: #6366f1;
}

.app-header {
  text-align: center;
  margin-bottom: var(--space-4);
  position: relative;
}

.status-bar {
  height: 20px;
  background: linear-gradient(90deg, 
    rgba(0, 0, 0, 0.1) 0%, 
    transparent 20%, 
    transparent 80%, 
    rgba(0, 0, 0, 0.1) 100%);
  margin: -var(--space-4) -var(--space-4) var(--space-2);
  border-radius: 20px 20px 0 0;
}

.app-header h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-800);
  margin: 0;
  padding: var(--space-2) 0;
}

/* Responsive Design for Phone Mockup */
@media (max-width: 1023px) {
  .phone-mockup {
    width: 240px;
    height: 480px;
  }
  
  .qr-grid {
    width: 70px;
    height: 70px;
  }
  
  .payment-method {
    min-height: 40px;
    font-size: 0.65rem;
  }
  
  .payment-method i {
    font-size: 0.9rem;
  }
}

@media (max-width: 767px) {
  .phone-mockup {
    width: 200px;
    height: 400px;
  }
  
  .qr-grid {
    width: 60px;
    height: 60px;
  }
  
  .payment-method {
    min-height: 35px;
    padding: var(--space-1);
  }
  
  .qr-logo {
    width: 16px;
    height: 16px;
  }
  
  .qr-logo i {
    font-size: 8px;
  }
}
.floating-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: hidden;
}

.floating-icon {
  position: absolute;
  width: 60px;
  height: 60px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.5rem;
  animation: float 6s ease-in-out infinite;
}

.floating-icon-1 {
  top: 20%;
  left: 10%;
  animation-delay: 0s;
}

.floating-icon-2 {
  top: 30%;
  right: 15%;
  animation-delay: 2s;
}

.floating-icon-3 {
  bottom: 30%;
  left: 15%;
  animation-delay: 4s;
}

.floating-icon-4 {
  bottom: 20%;
  right: 20%;
  animation-delay: 1s;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

@media (max-width: 768px) {
  .floating-elements {
    display: none;
  }
}

.partners::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
  pointer-events: none;
}

.partners-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: var(--space-8);
  margin-top: var(--space-12);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  min-height: 480px;
}

.partner-item {
  background: var(--white);
  border-radius: var(--radius-2xl);
  padding: var(--space-12);
  text-align: center;
  transition: all var(--transition-normal);
  box-shadow: 
    0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  min-height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.partner-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg, 
    transparent, 
    rgba(255, 255, 255, 0.8), 
    transparent
  );
  transition: var(--transition-slow);
  z-index: 1;
}

.partner-item:hover::before {
  left: 100%;
}

.partner-item:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: 
    0 20px 25px -5px rgba(0, 0, 0, 0.15),
    0 10px 10px -5px rgba(0, 0, 0, 0.1);
  border-color: rgba(99, 102, 241, 0.2);
}

/* 4列布局特殊效果 */
@media (min-width: 1200px) {
  .partner-item:nth-child(1) {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.03) 0%, rgba(255, 255, 255, 1) 100%);
  }
  
  .partner-item:nth-child(2) {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.03) 0%, rgba(255, 255, 255, 1) 100%);
  }
  
  .partner-item:nth-child(3) {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.03) 0%, rgba(255, 255, 255, 1) 100%);
  }
  
  .partner-item:nth-child(4) {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.03) 0%, rgba(255, 255, 255, 1) 100%);
  }
  
  .partner-item:nth-child(1):hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(255, 255, 255, 1) 100%);
    border-color: rgba(99, 102, 241, 0.3);
  }
  
  .partner-item:nth-child(2):hover {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.08) 0%, rgba(255, 255, 255, 1) 100%);
    border-color: rgba(16, 185, 129, 0.3);
  }
  
  .partner-item:nth-child(3):hover {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(255, 255, 255, 1) 100%);
    border-color: rgba(245, 158, 11, 0.3);
  }
  
  .partner-item:nth-child(4):hover {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.08) 0%, rgba(255, 255, 255, 1) 100%);
    border-color: rgba(239, 68, 68, 0.3);
  }
}

.partner-logo {
  width: 160px;
  height: 80px;
  margin: 0 auto var(--space-6);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-xl);
  transition: var(--transition-normal);
  position: relative;
  z-index: 2;
  background: rgba(248, 250, 252, 0.8);
  border: 1px solid rgba(226, 232, 240, 0.5);
}

.partner-logo img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  transition: var(--transition-normal);
  filter: saturate(0.8);
}

.partner-item:hover .partner-logo {
  transform: scale(1.15) rotate(2deg);
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 8px 25px -8px rgba(0, 0, 0, 0.15);
}

.partner-item:hover .partner-logo img {
  filter: saturate(1.2) brightness(1.1);
}

.partner-item h4 {
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--space-3);
  position: relative;
  z-index: 2;
  letter-spacing: -0.025em;
}

.partner-item p {
  color: var(--gray-600);
  font-size: 0.95rem;
  margin-bottom: 0;
  position: relative;
  z-index: 2;
  line-height: 1.6;
  font-weight: 500;
}

/* === 超大屏幕适配 (1400px+) === */
@media (min-width: 1400px) {
  .partners {
    padding: var(--space-24) 0;
  }
  
  .partners .section-title {
    font-size: 3rem;
  }
  
  .partners .section-subtitle {
    font-size: 1.25rem;
  }
  
  .partners-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: var(--space-12);
    max-width: 900px;
    min-height: 520px;
  }
  
  .partner-item {
    padding: var(--space-16);
    min-height: 240px;
  }
  
  .partner-logo {
    width: 180px;
    height: 90px;
  }
  
  .partner-item h4 {
    font-size: 1.75rem;
  }
  
  .partner-item p {
    font-size: 1.125rem;
  }
}

/* === 大屏幕适配 (1200px - 1399px) === */
@media (max-width: 1399px) and (min-width: 1200px) {
  .partners-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: var(--space-10);
    max-width: 850px;
  }
}

/* === 中等屏幕适配 (992px - 1199px) === */
@media (max-width: 1199px) and (min-width: 992px) {
  .partners {
    padding: var(--space-16) 0;
  }
  
  .partners .section-title {
    font-size: 2.25rem;
  }
  
  .partners-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: var(--space-8);
    max-width: 750px;
  }
  
  .partner-item {
    padding: var(--space-10);
  }
  
  .partner-logo {
    width: 140px;
    height: 70px;
  }
}

/* === 平板适配 (768px - 991px) === */
@media (max-width: 991px) and (min-width: 768px) {
  .partners {
    padding: var(--space-16) 0;
  }
  
  .partners .section-title {
    font-size: 2rem;
  }
  
  .partners .section-subtitle {
    font-size: 1rem;
  }
  
  .partners-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: var(--space-6);
    margin-top: var(--space-10);
    max-width: 650px;
    min-height: 400px;
  }
  
  .partner-item {
    padding: var(--space-8);
    min-height: 180px;
  }
  
  .partner-logo {
    width: 120px;
    height: 60px;
    margin-bottom: var(--space-4);
  }
  
  .partner-item h4 {
    font-size: 1.25rem;
  }
  
  .partner-item p {
    font-size: 0.9rem;
  }
}

/* === 移动端适配 (576px - 767px) === */
@media (max-width: 767px) and (min-width: 576px) {
  .partners {
    padding: var(--space-12) 0;
  }
  
  .partners .section-title {
    font-size: 1.875rem;
  }
  
  .partners .section-subtitle {
    font-size: 0.95rem;
    padding: 0 var(--space-4);
  }
  
  .partners-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: var(--space-5);
    margin-top: var(--space-8);
    max-width: 550px;
    min-height: 360px;
  }
  
  .partner-item {
    padding: var(--space-6);
    min-height: 160px;
  }
  
  .partner-item:hover {
    transform: translateY(-6px) scale(1.01);
  }
  
  .partner-logo {
    width: 100px;
    height: 50px;
    margin-bottom: var(--space-3);
  }
  
  .partner-item h4 {
    font-size: 1.125rem;
  }
  
  .partner-item p {
    font-size: 0.85rem;
  }
}

/* === 小屏手机适配 (320px - 575px) === */
@media (max-width: 575px) {
  .partners {
    padding: var(--space-10) 0;
  }
  
  .partners .section-title {
    font-size: 1.75rem;
    line-height: 1.3;
  }
  
  .partners .section-title::after {
    width: 40px;
    height: 3px;
  }
  
  .partners .section-subtitle {
    font-size: 0.9rem;
    padding: 0 var(--space-3);
  }
  
  .partners-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: var(--space-4);
    margin-top: var(--space-6);
    max-width: 480px;
    min-height: 320px;
  }
  
  .partner-item {
    padding: var(--space-4);
    border-radius: var(--radius-xl);
    min-height: 140px;
  }
  
  .partner-item:hover {
    transform: translateY(-4px);
  }
  
  .partner-logo {
    width: 80px;
    height: 40px;
    margin-bottom: var(--space-2);
  }
  
  .partner-item:hover .partner-logo {
    transform: scale(1.1);
  }
  
  .partner-item h4 {
    font-size: 1rem;
    margin-bottom: var(--space-1);
  }
  
  .partner-item p {
    font-size: 0.8rem;
    line-height: 1.4;
  }
}

/* === 超小屏适配 (< 400px) === */
@media (max-width: 399px) {
  .partners .section-title {
    font-size: 1.5rem;
  }
  
  .partners-grid {
    gap: var(--space-3);
    max-width: 320px;
    min-height: 280px;
  }
  
  .partner-item {
    padding: var(--space-3);
    min-height: 120px;
  }
  
  .partner-logo {
    width: 70px;
    height: 35px;
  }
  
  .partner-item h4 {
    font-size: 0.9rem;
  }
  
  .partner-item p {
    font-size: 0.75rem;
  }
}